Table 1 Demographic and professional characteristics of responders
Characteristics | Number (%) |
|---|---|
Age (mean ± SD), n = 360 | 44.0 ± 11.6 |
Men, n = 384 | 258 (67.2) |
European, n = 379 | 192 (50.7) |
Specialty, n = 379 | |
 Internal medicine | 186 (49.0) |
 Surgery | 94 (24.8) |
 SRs/statistics/epidemiology | 51 (13.5) |
 Others | 48 (12.7) |
Year of experience in SR/MA, mean (SD), n = 378 | 8.6 (6.3) |
  > 5 years’ experience | 213 (56.3) |
Number of publications in SR/MA, (mean ± SD), n = 375 | 13.6 ± 32.9 |
Highest impact factor of published SR/MA, n = 373 | |
 0–2 | 34 (9.1) |
 2–5 | 128 (34.3) |
 5–10 | 124 (33.2) |
 10–20 | 49 (13.1) |
  > 20 | 38 (10.2) |
Experience in data extraction for SR/MA of clinical trials, n = 384 | 368 (95.8) |
 Directly extracted | 339 (88.3) |
 Instruct students to extract | 29 (7.6) |